In app purchases not working – Drill Math Word Problems Review

I have purchased the time and geometry sections and some of the answer tiles do not display any images so you don't know the options. I have uninstalled and reinstalled with no change. Please advise or refund my money please. Using iPhone 6plus running iOS 9.3.1. Game is Banana Math. I have tried to reach out to the developer but I get a 401 error when I try to submit my request.
Review by Jlanemomoffour on Drill Math Word Problems.